ELECTROMECHANICAL DRIVE FOR MULTI-WING OR SINGLE-WING DOOR (VARIANTS) Russian patent published in 2006 - IPC E05F15/12 

FIELD: doors, particularly power-operated mechanisms for door wings.

SUBSTANCE: electromechanical drive comprises door closer with eccentric gear wheel having annular generation curve. The gear is interengaged with rack included in piston. Particular rack generation curve and teeth shapes are aligned with gear wheel rim. Door closer body has at least one regulation valve, which decelerates directed piston displacement in position corresponding to closed door.

EFFECT: provision of optimal piston movement characteristics and improved breaking characteristics of door during door closing.

12 cl, 12 dwg